diff options
| author | Christoph Hellwig <hch@lst.de> | 2009-05-12 01:35:03 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-12 05:36:09 +0400 |
| commit | ebc1ac164560a241d9bf1b7519062910c3f90a01 (patch) | |
| tree | db17fd3043b15f8269cce2c2d00213814022fc30 /fs/hfsplus/super.c | |
| parent | 01ba687577647beef6c5f2ea59bfb56fac9fcde2 (diff) | |
| download | linux-ebc1ac164560a241d9bf1b7519062910c3f90a01.tar.xz | |
->write_super lock_super pushdown
Push down lock_super into ->write_super instances and remove it from the
caller.
Following filesystem don't need ->s_lock in ->write_super and are skipped:
* bfs, nilfs2 - no other uses of s_lock and have internal locks in
->write_super
* ext2 - uses BKL in ext2_write_super and has internal calls without s_lock
* reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in
->write_super
* xfs - no other uses of s_lock and uses internal lock (buffer lock on
superblock buffer) to serialize ->write_super. Also xfs_fs_write_super
is superflous and will go away in the next merge window
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/hfsplus/super.c')
| -rw-r--r-- | fs/hfsplus/super.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index 9b292dcc39c8..1aab8aa7801e 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -157,10 +157,12 @@ static void hfsplus_write_super(struct super_block *sb) struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr; dprint(DBG_SUPER, "hfsplus_write_super\n"); + + lock_super(sb); sb->s_dirt = 0; if (sb->s_flags & MS_RDONLY) /* warn? */ - return; + goto out; vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks); vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc); @@ -192,6 +194,8 @@ static void hfsplus_write_super(struct super_block *sb) } HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP; } + out: + unlock_super(sb); } static void hfsplus_put_super(struct super_block *sb) |